Adjustable fire-back



UNITED STATES PATENT OFFICE.

HOLVER O. JEGLUM AND SANDER H. LEIKVOLD, OF WATERVILLE, IONA.

ADJUSTABLE FIRE-BACK.

SPECIFICATION forming part of Letters Patent No. 406,401, dated July 2, 1889.

Application filed August 18, 1888.

To all whom it may concern."

Be it known that we, HOLVER O. JEGLUM and SANDER H. LEIKvoLD, both residents of Waterville, in the county of Allamakee and State of Iowa, have invented cer'tain new and useful Improvements in Adjustable Fire- Backs; and we do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to adjustable firebacks.

The object is to produce a fire-back of such I 5 construction that it may be adjusted to fit any stove, and which will be comparatively indestructible; furthermore, to produce a fireback which shall be simple of construction, efficient and durable in use, and comparazo tively inexpensive of production.

With these objects in View the invention consists in a plate having a number of ribs or corrugations formed thereon designed to catch and retain the incomplete products of combustion, whereby the said plate-will be protected from the flames and preserved for a long period of time against destruction; furthermore, in the combination, with the said plate, of another plate provided with similar corrugations and connected with the first plate by means of a bolt or of bolts passing through longitudinal slots formed in the first plate, whereby the fire-back may be lengthened or shortened to fit any-sized stove; furthermore, in the combination, with the said plate, of other plates secured on their back and having slots formed therein through which the bolts before referred to work, whereby the fire-back may be made wider when desired; 0 and, finally, in the combination and operation of the various parts, whereby its objects are attained.

In the accompanying drawings, forming part of this specification, in which like letters of reference indicate corresponding parts, Figure 1 is a side elevation of one of the plates forming the fire-back, showing the corrugations or ribs thereon and the longitudinal slots formed between the ribs. Fig. 2 is an elevation of another plate, showing the ribs or corrugations extending but aportion of its length, and so arranged as to slide between Serial No. 283,083. (No model.)

the ribs on the first plate, and the openings through which the bolts pass for securing the two plates together. Figs. 3 and 4 are detail views of the plates for extending the width of the fire-back, and Fig. 5 is aperspective view showing the device intact.

Referring. to the drawings, A designates the larger plate, having a number of corrugations or ribs ct formed thereon. This plate may be made of any suitable refractory material-as, for example, sheet-iron and the ribs secured thereon, as by riveting; but, if preferred, it may be cast of any suitable metal. At one end of this plate are formed a number of longitudinal slots to which extend abouthalf the distance of the length of the plate and are designed for the reception of bolts (/5 by which the device is held intact.

B designates the smaller plate, which may be made of the same material as the first plate. At one end of this plate are a number of corrugations or ribs b, which are so placed thereon that they will slide between the ribs on the first-named plate when the device is either lengthened or shortened, so as to present a continued rib extending the entire length of the two plates for catching and 1e taining the soot, ashes, or other incomplete products of combustion. On the back of these plates are mounted two other plates 0 0, one end of each of which is provided with a number of openings 0, which are designed to engage projections a on the plates.

The larger plate 0 is provided with a longitudinal slot 0 and the smaller plate 0 with a transverse slot 0 and through these slots extends a bolt A. The slots are designed to admit of the plates being adjusted longitudir nally and vertically, and the bolt for clamping them in the adjusted position.

When the device is intact, as shown in Fig. 5,'it is held in place by means of the nuts, which when screwed down serve to bind the device securely and firmly together.

When it is desired to lengthen and widen the device, it is only necessary to turn the nuts, draw the frame out the desired length, move the plates on the back the desired distance, and then screw the nuts to their seats. Thus it will be seen that this fire-back may be adjusted to fit any-sized stove, and that by the ribs or corrugations which are designed to catch and retain the ashes, &c., the fire-back will be rendered practically indestructible.

Having thus fully described our invention, What We claim as new, and desire to secure by Letters Patent, is

In a fire-back, the combination of a plate having a number of upward-extending parallel ribs and longitudinal open-ended slots be tween the ribs, a plate having similar ribs arranged out of line with the ribs of the firstnamed plate and adapted to slide between the same, adjustable plates fitting 011 the back of the ribbed plates, having a series of openings near their outer edges, projections on the ribbed plates engaging the said openings, and bolts extending through the adjustable and the ribbed plates to clamp the whole together, substantially as described.

In testimony that we claim the foregoing as our own We have hereunto aflixed onr signatures in presence of two Witnesses.

Witnesses:

C. O. FRoK, P. PETERSON. 

